Sökning: "Solid-liquid interface"

Visar resultat 16 - 20 av 32 avhandlingar innehållade orden Solid-liquid interface.

  1. 16. Nanostructured surfaces created by the interactions of dendrimers and oppositely charged amphiphiles

    Författare :Marianna Yanez; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PAMAM; Surfactant; SDS; Lipid; Bilayer; Model Biomembrane; Nucleolipid; DLPA; DLPU; DNA; RNA; Neutron Reflectometry; Poly amidoamine ; Interface; Adsorption; Polyelectrolyte;

    Sammanfattning : The research described in this thesis aims to understand the interactions between cationic poly(amidoamine) (PAMAM) dendrimers and small oppositely charged amphiphiles at the solid-liquid and air-liquid interfaces in relation to the bulk solution behavior. There is high interest in PAMAM dendrimers because they are well-defined polymers with a hierarchical architecture which makes them promising materials as nanocapsules and gene vectors. LÄS MER

  3. 17. Polyelectrolytes on Surfaces and their Complexes with Surfactants, Thermodynamics versus kinetics

    Författare :Yulia Samoshina; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Polymer technology; Physical chemistry; SDS; amphiphilic polyelectrolytes; ellipsometry; reversibility; kinetics of adsorption; polyelectrolytes at solid-liquid interface; polyelectrolyte-oppositely charged surfactant complexes; biopolymers; Polymerteknik;

    Sammanfattning : The interfacial properties of polyelectrolytes, mainly cationic with various content of amphiphilic groups, and their complexes with an oppositely charged surfactant, sodium dodecyl sulfate (SDS), have been investigated using time-resolved ellipsometry. This thesis focuses on the kinetics and reversibility aspects of polymer adsorption and the control of the adsorption by regulating the electrostatic interactions. LÄS MER

  4. 18. Nanofabrication of Single Electron Transistors and Evaluation of Miniature Biosensors

    Författare :Linda G. M. Olofsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; miniaturization; nanoparticles; impedance; single electron tunneling; biosensors; surface plasmon resonance;

    Sammanfattning : This thesis deals with miniaturization in two different fields: electronics and biosensing. The first part deals with fabrication and measurements of two nanoscale structures - a self-assembled single electron transistor and a (potential) single junction device. LÄS MER

  5. 19. Adsorption and Ordering of Surface Active Molecules and Particles at Solid Interfaces and in the Bulk

    Författare :Maja S. Hellsing; Adrian R. Rennie; Jöns Hilborn; Julia Higgins; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : Factors that influence the process of adsorption and order of dilute and concentrated systems of molecules and particles are explored in this thesis.  The results are based largely on neutron scattering techniques. LÄS MER

  7. 20. Interfacial Properties of Lipid Liquid Crystalline Nanoparticles

    Författare :Pauline Vandoolaeghe; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; interaction; adsorption; surface; peptide; bilayer; cubic phase; monoolein; cubosome; lipid; liquid crystalline nanoparticles; ellipsometry; neutron reflectivity; QCM-D; SAXD;

    Sammanfattning : Lipid liquid crystalline nanoparticles are studied for their potential as biocompatible carriers for pharmaceutical, food and cosmetic applications. Their potential as delivery vehicles is due to their nanometer size, their controllable structure and physical properties and their large carrying capacity of a wide range of molecules. LÄS MER